So I have been a developer and pretty proficient at CSS and coding styling. There is a new design that has been approved and trying to figure out the best way to accomplish this. Here is a screenshot of what I am trying to achieve with drawing borders and lines but they need to extend both left and down:
Does anyone have any insights on how to achieve this with HTML/CSS? Obviously going to tablet and mobile it would be removed, but on desktop they want to achieve this. I do not want to do a flattened image, but that is the only way I am leaning right now.